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IMPACT CHAMBER [6 records]

Record 1 2024-02-01

English

Subject field(s)
  • Statistical Methods
  • Offences and crimes
  • Criminology
CONT

The Montego Bay Chamber of Commerce and Industry and the University of the Commonwealth Caribbean have signed an agreement to conduct a study on the impact of crime in the Second City. The study that will be carried out by a team of researchers from the UCC will look at, among other things, how crime has affected the city's population, commerce, infrastructure and economy.

Key term(s)
  • crime-impact study

French

Domaine(s)
  • Méthodes statistiques
  • Infractions et crimes
  • Criminologie

Spanish

Save record 1

Record 2 2012-09-12

English

Subject field(s)
  • Ballistics
  • Small Arms
CONT

Bullet traps can be grouped into three broad categories, deceleration, impact, and friction, though there is some blurring of the dividing line. Deceleration traps use a circular or helical chamber to allow the bullet to spin inside until it has shed sufficient velocity to drop through a recovery port in the bottom.

French

Domaine(s)
  • Balistique
  • Armes légères

Spanish

Save record 2

Record 3 2012-05-17

English

Subject field(s)
  • Engineering Tests and Reliability
  • Aeronautical Engineering and Maintenance
CONT

Bosik Consultants Limited operates the National Research Council’s Flight Impact Simulator Facility in Ottawa, ON. The facility houses a large pneumatic cannon (10-inch barrel diameter, measuring approximately 75 feet in length) employed to propel birds to their targets in order to simulate bird strikes with aircraft components. Aircraft components typically impacted include windshields, wings and empennage leading edges.

CONT

NRC' s [National Research Council of Canada] flight impact simulators or bird guns have three parts : a storage reservoir(tank at the back) pressurized to the test pressure; a step chamber(half of the reservoir's pressure) ;and a barrel with sabot arrestor. The sabot, which holds the projectile, must withstand the launch, protect the projectile and crush the muzzle arrestor so that nothing but the projectile continues on to the target. Adjusting the thickness of the sabot lining helps various sizes of projectiles to fit in the barrel. The firing mechanism uses a double diaphragm method. Each diaphragm is made of very thin plastic material(Mylar).

French

Domaine(s)
  • Fiabilité, contrôle et essais (Ingénierie)
  • Aérotechnique et maintenance
CONT

Les simulateurs d'impact en vol ou canons à poulets du CNRC [Conseil national de recherches du Canada] comportent trois parties : un réservoir de stockage (à l'arrière) porté à la pression qui servira aux essais; une chambre intermédiaire (à la moitié de la pression du réservoir); et le canon avec son sabot d'arrêt. Le sabot, où est logé le projectile, doit résister au choc du lancement, protéger le projectile et écraser la pièce d'arrêt pour que seul le projectile parte et atteigne la cible. En modifiant l'épaisseur du revêtement du sabot, on peut placer des projectiles de tailles diverses dans le canon. Le mécanisme de mise à feu recourt à un double diaphragme, chacun étant constitué d'une très fine pellicule de plastique (Mylar).

OBS

Le simulateur est un canon pneumatique qui projette des carcasses de poulet sur les pare-brise et d'autres parties d'aéronefs pour simuler les effets d'une collision avec des oiseaux.

Spanish

Save record 3

Record 4 2003-09-27

English

Subject field(s)
  • Pumps
  • Sewers and Drainage
CONT

In addition to the low flow fixtures reducing wasterwater flows by 3 per cent, a number of technologies were used to reduce wasterwater impact on the soil below the bed. This included insulating the 3, 600 L septic tank and the 900 L pump chamber immediately downstream...

French

Domaine(s)
  • Pompes
  • Égouts et drainage
CONT

En plus des appareils économiseurs qui ont permis de réduire le débit des eaux usées de 3%, certaines techniques ont été employées en vue d'atténuer les répercussions des eaux usées sur le sol en-dessous du champ d'épandage. On a, à cet effet, isolé la fosse septique de 3600 L et la chambre de la pompe tout juste en aval [...]

Spanish

Save record 4

Record 5 1996-03-08

English

Subject field(s)
  • Analytical Chemistry
CONT

Thermionic or Electron Impact Detector. In 1957, Ryce and Bryce described a sensitive ionization gauge based on the ionization potentials of vapors. It comprised a filament, a grid, and a plate. The potential difference between the filament and grid accelerated electrons which may ionize any gas in their path. If the grid potential is maintained at a level insufficient to ionize the helium carrier gas... no current flows in the plate circuit. If a potential difference of 18 V is maintained between the filament and the grid, compounds of lower ionization potential in the helium will be ionized and the positive ions produced will yield a cathode current, the current noted being a measure of the ion concentration. Into the modified ionizing chamber, operated at reduced pressure, a small fraction of the column effluent gas stream(less than 0. 5%) was allowed to flow into the gauge through a controlled leak. Over a 0. 02-l. 5 mm Hg pressure range, the sensitivity was approximately proportional to the pressure, and sensitivities in the range of 10[ minus superscript 12] mole were claimed.

French

Domaine(s)
  • Chimie analytique

Spanish

Save record 5

Record 6 1990-06-12

English

Subject field(s)
  • Flight Instruments and Equipment (Aeroindustry)
  • Aeronautical Engineering and Maintenance
OBS

pitot static system

French

Domaine(s)
  • Instruments et équipement de bord (Constructions aéronautiques)
  • Aérotechnique et maintenance

Spanish

Save record 6

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